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Monterey Bay

CRC-21727 – Residency

58th sighting in Monterey Bay
Fluke of CRC-21727
CRC-21727 Confirmed in the catalog @106580
Sep 20 – Dec 20, 2025 · Monterey Bay

Monterey Bay · Sep – Dec 2025

213 m
Deepest dive
7:57
Longest dive
369
Dives
Sightings
31
Days between first and last sighting
91
Deepest dive on record
213 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Sep 20, 2025129 m17.6°C84 m
Sep 21, 2025567 m16.9°C85 m
Sep 23, 202570 m17.3°C63 m
Sep 25, 2025142 m17.4°C44 m
Sep 30, 202566 m16.9°C44 m
Oct 1, 2025143 m17.0°C46 m
Oct 4, 2025254 m17.3°C213 m
Oct 5, 202564 m17.4°C43 m
Oct 6, 202568 m17.6°C60 m
Oct 6, 2025137 m17.6°C68 m
Oct 7, 202574 m17.7°C59 m
Oct 7, 202535 m17.7°C31 m
Oct 8, 2025567 m16.8°C46 m
Oct 9, 202573 m17.2°C56 m
Oct 12, 2025228 m16.9°C166 m
Oct 15, 2025153 m15.4°C50 m
Oct 16, 202573 m15.4°C63 m
Oct 16, 2025254 m15.2°C65 m

Seafloor and sea temperature measured · ✳ dives modelled ·

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
Sep 20, 2025 — seafloor 129 m (measured), deepest dive 84 m (modelled)Sep 20Sep 21, 2025 — seafloor 567 m (measured), deepest dive 85 m (modelled)Sep 23, 2025 — seafloor 70 m (measured), deepest dive 63 m (modelled)Sep 25, 2025 — seafloor 142 m (measured), deepest dive 44 m (modelled)Sep 30, 2025 — seafloor 66 m (measured), deepest dive 44 m (modelled)Oct 1, 2025 — seafloor 143 m (measured), deepest dive 46 m (modelled)Oct 4, 2025 — seafloor 254 m (measured), deepest dive 213 m (modelled)Oct 4Oct 5, 2025 — seafloor 64 m (measured), deepest dive 43 m (modelled)Oct 6, 2025 — seafloor 68 m (measured), deepest dive 60 m (modelled)Oct 6, 2025 — seafloor 137 m (measured), deepest dive 68 m (modelled)Oct 7, 2025 — seafloor 74 m (measured), deepest dive 59 m (modelled)Oct 7, 2025 — seafloor 35 m (measured), deepest dive 31 m (modelled)Oct 8, 2025 — seafloor 567 m (measured), deepest dive 46 m (modelled)Oct 8Oct 9, 2025 — seafloor 73 m (measured), deepest dive 56 m (modelled)Oct 12, 2025 — seafloor 228 m (measured), deepest dive 166 m (modelled)Oct 15, 2025 — seafloor 153 m (measured), deepest dive 50 m (modelled)Oct 16, 2025 — seafloor 73 m (measured), deepest dive 63 m (modelled)Oct 16, 2025 — seafloor 254 m (measured), deepest dive 65 m (modelled)Oct 20, 2025 — seafloor 142 m (measured), deepest dive 94 m (modelled)Oct 20Oct 20, 2025 — seafloor 33 m (measured), deepest dive 28 m (modelled)Oct 22, 2025 — seafloor 567 m (measured), deepest dive 155 m (modelled)Oct 23, 2025 — seafloor 70 m (measured), deepest dive 54 m (modelled)Nov 6, 2025 — seafloor 78 m (measured), deepest dive 42 m (modelled)Nov 27, 2025 — seafloor 162 m (measured), deepest dive 59 m (modelled)Nov 28, 2025 — seafloor 146 m (measured), deepest dive 76 m (modelled)Nov 28Nov 30, 2025 — seafloor 528 m (measured), deepest dive 101 m (modelled)Dec 1, 2025 — seafloor 89 m (measured), deepest dive 38 m (modelled)Dec 12, 2025 — seafloor 320 m (measured), deepest dive 146 m (modelled)Dec 18, 2025 — seafloor 89 m (measured), deepest dive 45 m (modelled)Dec 18, 2025 — seafloor 117 m (measured), deepest dive 87 m (modelled)Dec 20, 2025 — seafloor 538 m (measured), deepest dive 95 m (modelled)Dec 20

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

213 m
Deepest dive
7:57
Longest dive
369
Dives
28 m
Avg dive depth
31
Sightings
91
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0125250213 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (254 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

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Place

Where this happened · Oct 4, 2025

measured
Seafloor depth
254 m
Sea-surface temperature
17.3°C
Distance from shore
4.0 km

Across the residency · 31 sightings

measured
Seafloor depth
33 m – 567 m
Sea-surface temperature
14.1°C – 17.7°C
Distance from shore
2.0 km – 16.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 31 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.